tailodds FORECAST
Tickets
Any day
Monday, October 5 · our forecast odds · issued Sun 5:00 PM ET · connections flying that day

Tomorrow: no forecasts for this route’s flights; their 12-month records are below.

Nonstops that day

All 2 nonstops →
UA 4033 United flown by Mesa no forecast: 12-month record IAH 19:50 GSP 23:19 19% 17% 0.0% 81%
UA 6139 United flown by Mesa no forecast: 12-month record IAH 12:30 GSP 15:59 31% 4% 0.0% 69%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Greenville on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (Greenville is 1 h ahead of Houston). Layovers up to 4 hours. Pick a connection for its 12-month details.
DeltaDetails → IAH 05:40 → ATL 08:50DL 1069 2h 26m Atlanta ATL 11:16 → GSP 12:14DL 1725 5h 34m 99% 89%
DeltaDetails → IAH 07:00 → ATL 10:04DL 1315 3h 03m Atlanta ATL 13:07 → GSP 14:01DL 1273 6h 01m 98% 87%
UnitedDetails → IAH 06:30 → DEN 08:02UA 2643 2h 04m Denver DEN 10:06 → GSP 15:19UA 2066 7h 49m 100% 87%
DeltaDetails → IAH 08:05 → ATL 11:10DL 644 3h 57m Atlanta ATL 15:07 → GSP 16:07DL 3095 7h 02m 100% 86%
AmericanDetails → IAH 06:09 → CLT 09:47AA 3162 1h 20m Charlotte CLT 11:07 → GSP 12:14AA 5802 · flown by Piedmont 5h 05m 91% 84%
AmericanDetails → IAH 05:02 → DFW 06:19AA 2551 3h 22m Dallas-Fort Worth DFW 09:41 → GSP 13:09AA 3986 · flown by Envoy 7h 07m 96% 83%
DeltaDetails → IAH 12:09 → ATL 15:21DL 1682 2h 34m Atlanta ATL 17:55 → GSP 18:55DL 1021 5h 46m 97% 82%
UnitedDetails → IAH 07:20 → DEN 08:52UA 1575 1h 21m Denver DEN 10:13 → GSP 15:19UA 1786 6h 59m 95% 82%
Tight connection: often missed
UnitedDetails → IAH 12:13 → IAD 16:30UA 2366 50m Dulles IAD 17:20 → GSP 19:04UA 4963 · flown by CommuteAir 5h 51m 62% 48%
How these are worked out. Each flight’s odds are our forecast for that day; flights of airlines we don’t forecast yet use their 12-month record and are marked. Makes the connection: the first flight’s 12-month lateness curve, scaled so its chance of arriving 15+ min late matches the day’s forecast, at the layover minus the 45-minute minimum (90 on separate tickets). Arrives on time: first flight not cancelled × connection made × second flight not cancelled × second flight within 15 minutes, each from the day’s forecast.

About this data: forecast odds from our model for Mon, Oct 5 (newest published update); 12-month records from US DOT on-time data, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. JSON